Author Topic: CHASM REVERB  (Read 200165 times)

deadastronaut

Re: CHASM REVERB
« Reply #100 on: January 05, 2014, 07:38:53 PM »
john, cool, so it was the footswitch then,..

re the osc: double check the 2 resistor values that the switch goes to...

47k osc

100k non osc
« Last Edit: January 05, 2014, 07:42:27 PM by deadastronaut »

Jdansti

Re: CHASM REVERB
« Reply #101 on: January 05, 2014, 08:06:21 PM »
The 47k (Y-V-O) is reading 50k and the 100k (Bn-Bk-Y) is about 105k.

However... The 100nF cap across the two resistors appears to be a 1nF cap. I'll pull it and check.

Jdansti

Re: CHASM REVERB
« Reply #102 on: January 05, 2014, 08:41:01 PM »
The correct cap did the trick!  I've got oscillation now. Unfortunately the oscillation irritated my wife. :(  She told me to stop playing and build something (I can't play while I build). ;)

Anyway, I'll post the results after I get it boxed up.

Thanks Rob and theehman for your help!

deadastronaut

Re: CHASM REVERB
« Reply #103 on: January 05, 2014, 08:53:03 PM »
next project: build the wife some headphones.. :D

cool glad you got it sorted.  ;)

Jdansti

Re: CHASM REVERB
« Reply #104 on: January 05, 2014, 09:42:07 PM »
LOL  :D

pinkjimiphoton

Re: CHASM REVERB
« Reply #105 on: January 08, 2014, 10:42:19 PM »
psyched.... my brick came in today... tomorrow, i'll get some rat-shack perf (my first attempt at perf, <shudder>)
and i am gonna build this thing...

thanks rob!! this and jon patten's cardinal trem and i think i'd done for a while. ;)

deadastronaut

Re: CHASM REVERB
« Reply #106 on: January 09, 2014, 04:17:29 AM »
perf?...brave man.. ;) 8) 8) 8)

pinkjimiphoton

Re: CHASM REVERB
« Reply #107 on: January 09, 2014, 10:25:48 AM »
cheater perf, the stuff with a pad for every hole!! ;)

isn't your layout on perf?

seems easier than vero, at least this project for some reason. vero's great for simple fuzzes, but sometimes it can be a pia!!

deadastronaut

Re: CHASM REVERB
« Reply #108 on: January 09, 2014, 11:01:02 AM »
hi jimi, its on pcb...

i only use vero for tiny quickie stuff.

Jdansti

Re: CHASM REVERB
« Reply #109 on: January 09, 2014, 09:42:17 PM »
Here's my Chasm Reverb. Thanks for working on this Rob and the others who collaborated. Sounds great!

This was my first epoxy pour-on. Thanks to Mustachio for great Envirotex tips on other threads.









Edit: I should add, thanks to some talented person who put the chasm art on the web.
« Last Edit: January 09, 2014, 09:59:29 PM by Jdansti »

pinkjimiphoton

Re: CHASM REVERB
« Reply #110 on: January 09, 2014, 09:45:16 PM »
hi jimi, its on pcb...

i only use vero for tiny quickie stuff.

i know i did more than my share of acid, but the pdf in this thread sure looks like it's on perf to me!! ;)

lol

haveyouseenhim

Re: CHASM REVERB
« Reply #111 on: January 09, 2014, 09:52:31 PM »
hi jimi, its on pcb...

i only use vero for tiny quickie stuff.

i know i did more than my share of acid, but the pdf in this thread sure looks like it's on perf to me!! ;)

lol

There's a PCB transfer along with it.

https://dl.dropboxusercontent.com/u/7464107/CHASMPCB.pdf

Jdansti

Re: CHASM REVERB
« Reply #112 on: January 09, 2014, 09:55:34 PM »
+1

^I think that the spacing on the color image that shows the components is the same as perf board spacing. Even if it's not exact, I'll bet it'll work for ya'.

pinkjimiphoton

Re: CHASM REVERB
« Reply #113 on: January 09, 2014, 10:03:24 PM »
lets hope so, cuz i can't burn any pcbs!! ;)

if it will fit on the perf layout, i think i can do it. i'm brave AND stupid!! ;)

i think it should work out, as if the stuff fits on the perf layout, it should fit in reality hopefully!! ;)

alanp

Re: CHASM REVERB
« Reply #114 on: January 09, 2014, 10:59:43 PM »
I did up a pcb to avoid flying wires, and to avoid perf, and to even more avoid having to etch PCB's (dont have the supplies, don't want the headache of disposal.)

Probably would have been less effort doing it point to point :/

pinkjimiphoton

Re: CHASM REVERB
« Reply #115 on: January 09, 2014, 11:04:55 PM »
honestly, after the clone theory project on vero, everything looks kinda easy now. ;)

haveyouseenhim

Re: CHASM REVERB
« Reply #116 on: January 09, 2014, 11:10:01 PM »
lets hope so, cuz i can't burn any pcbs!! ;)

I'll burn one for ya if you would rather use a PCB.

pinkjimiphoton

Re: CHASM REVERB
« Reply #117 on: January 09, 2014, 11:15:57 PM »
that would be awesome mike, if you could, i'd be grateful...
should probably leave the perf toward something a little easier to start with i get the feeling!!

do you need my addie again?

bluebunny

Re: CHASM REVERB
« Reply #118 on: January 10, 2014, 03:27:58 AM »
Here's my Chasm Reverb. Thanks for working on this Rob and the others who collaborated. Sounds great!


Nice one, John.  Looks great.  I must get round to building mine...

Quote
Edit: I should add, thanks to some talented person who put the chasm art on the web.

You should have kept quiet and taken all the glory!   ;)
  • SUPPORTER

haveyouseenhim

Re: CHASM REVERB
« Reply #119 on: January 10, 2014, 04:18:15 AM »
that would be awesome mike, if you could, i'd be grateful...
should probably leave the perf toward something a little easier to start with i get the feeling!!

do you need my addie again?

Yeah. PM me your address and I'll have it done within a week.